US EPA
United States Environmental Protection Agency
Ecological Fate and Effects Division
Office of Pesticide Programs
OPP Pesticide Ecotoxicity Database
Caution Statement
Database Guidance
Contact
Download
Search Toxicity Database
Login
Pesticide Details
Pesticide
2,4-D Isooctyl Ester
PC Code
030064
CAS Number
25168-26-7
Type of Pesticide
Herbicide
Type of Organism
Crustacea
Common Name
Water flea
Scientific Name
Daphnia magna
Age
1st-I
Guideline
[72-2] Freshwater Invertebrate Acute using TGAI or TEP (FIFRA 158.490)
Test Type
[S] Static system (aquatic)
% AI
39.6%
Study Length
48 hr
Dose Type
[EC50] 50% Effect Concentration
Toxicity
500 Parts per Billion
95% Confidence Levels
N.R.
Probit Slope
N.R.
NGL
NOEL
N.R.
Study Date
1975
Review Date
1987
Category
C
MRID, ACC, TN Numbers
LEWDOO07
Laboratory
EPA Research Labs, at Beltsville, MD ,Gulfbreeze, FL, or Duluth, MN.
Reviewer
C. Lewis
Batch Number
Eggs Laid
% Eggs Cracked
% Eggs Viable
% Live Embryos
% Egg Hatch
14 Day Survive
Growth Effect